Several California localities have passed bans on flavored tobacco products (menthol cigarettes, cheap flavored cigars, etc.) as a way to limit their appeal, especially to teenagers who might be tempted to try them. Unfortunately, the bans always include flavored electronic cigarettes. Because virtually all vaping liquids are flavored, that means a ban on a product that isn't risk-free—but is far less risky than combustible cigarettes. [...]